/* 登录页面设计 */
.login-container {
    width: 100%;
    height: calc(100% - 50px);
    /*  */
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-dialog {
    width: 400px;
    height: 400px;

    /* 背景框 */
    background-color: rgba(255,255,255,0.7);
    border-radius: 10%;
}
.login-dialog h3{
    text-align: center;
    padding: 50px 0;
}
.login-dialog .row{
    height: 50px;
    width: 100%;

/* 水平居中设计 */

    display: flex;
    align-items: center;
    justify-content: center;
}
.login-dialog .row span {
    /* 把span变成块级元素，方便后续设置尺寸 */
    display: block;
    width: 100px;
    font-weight: 700;
}
/* id选择器 */
#username, #password {
    width: 200px;
    height: 40px;
    font-size: 22px;
    line-height: 40px;
    padding-left: 10px;
    border-radius: 10px;
    /* 去边框 */
    border: none;
    /* 去轮廓线 */
    outline: none;
}
.row #submit {
    width: 300px;
    height: 50px;
    border-radius: 10px;
    color: white;
    background-color:  rgb(238, 189, 117);
    border: none;
    outline: none;

    /* 提交按钮top距离 */
    margin-top: 50px;
}
.row #submit:active {
    background-color: rgb(247, 216, 170);
}